Great Plains AS-20 Operator Manual - Manual (Page 10)

All Seeds Hitch Flat Fold Marker 113-476M 4/8/04 8 Great Plains Mfg., Inc.
Section 2 Assembly Instructions & Set-Up
7.
NOTE: Check the hydraulic fluid in the tractor reser-
voir and fill it to the proper level. Add fluid to the sys-
tem as needed. A low reservoir may draw air back
into the system causing jerky or uneven movement.
The fluid capacity of the markers is.75 gallons.
With the first section in the lowered position, con-
nect the hoses to the tractor and cycle each cylinder
3 or 4 times. Both arms should move to the vertical
position on the first move and then they should lower
and raise alternately as the hydraulic lever is oper-
ated.
!
DANGER!
Keep all persons clear of the marker when operating. Air in
the hydraulic system can cause the marker arm to drop quick-
ly. Make sure the system is properly charged.
Refer to Figure 2-3 for Installation Instructions steps 8
and 9.
8. Check the orientation of the second section mount-
ing pin (#1). The second stage mounting pin (#1)
must be assembled into the hinge with the flanged
head toward the tongue end of the hitch for the
breakaway to work properly, Figure
2-3. If not, pull it
out and insert it from the other direction.
9. Remove the rear 1/2 x 3 1/2 long bolt (#2) from the
second section mount and install the second marker
section (#3) between the plates. Align the holes and
replace the bolt and lock nut. Bolt the front flange on
the second section to the flange on the second sec-
tion mounting pin with a 5/16 x 1 1/2 long grade 5 bolt
(#4) and locknut (#5).
Mounting Pin Orentation
Figure 2-3
12551
Disk Adjustments
The aggressiveness and the mark left by the disk may
be changed by two methods:
1. Disk Angle
To change the angle of cut, loosen the two bolts (#1)
Figure
2-4, rotate the disk assembly and retighten.
2. Direction Of Cut
The disk may be mounted to throw dirt either in or
out which will give different marks in different soil
Disk Adjustments
Figure 2-4
12433
conditions. To change the direction of cut:
a. Reverse the blade and depth band by removing
the four lug bolts on the disk hub.
b. Reverse the angle of the assembly by loosening
the u-bolt (#2), pulling the disk assembly out
and rotate it one half turn. Reinstall and tighten
all bolts.
3. Marker Width
Marker width adjustments are made by loosening
the marker tube u-bolt (#2) and sliding it in or out to
the desired width and retightening the u-bolt.